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Subaru 2.5-litre Turbo Boxer Engine Wins at International Engine of the Year Awards 2008

— The top engine in the 2- to 2.5-litre class this year —

Tokyo, May 8, 2008– Fuji Heavy Industries Ltd. (FHI), the maker of Subaru automobiles, today announced that its 2.5-litre, Horizontally-Opposed, 4-cylinder boxer engine with a turbo charger was voted this year’s winner in the 2- to 2.5-litre engine class of the International Engine of the Year Awards. The award ceremony took place on May 7 at the Engine Expo in Stuttgart, Germany. Subaru was first awarded the same prize in 2006. The engine received the higher score from the voting panel again this year.

A panel of 65 renowned journalists from 32 countries served as judges in the competition organized by UKIP Media & Events – Automotive Magazines’ Division, Britain’s largest group of auto-technology magazines, which includes Engine Technology International and Automotive Testing Technology International. The judges applied their technical knowledge and impressions, scoring for the vehicle’s performance, drivability, ease of handling, fuel economy, and refinement. Based on the points given by the judges, the grand prize, prizes for best engines in eight capacity classes and three other categories were awarded.

Subaru’s winning engine delivers higher low and mid-range torque, thereby offering better overall performance and practical use. Design changes, including to the engine’s turbocharger, improves the vehicle’s powerful and controllable response, as well as its environmental performance.


Subaru 2.5-litre Turbo Boxer

Subaru’s current Forester and Impreza models for European, North American and Australian markets, and Legacy for North American and Australian markets, and Outback for North American market, come equipped with the award-winning 2.5-litre turbo engine.

Specifications of the 2.5 litre boxer turbo engine for European Models

Type: Horizontally-Opposed, DOHC 16 valve, 4-cylinder, turbocharged, petrol engine
Bore/Stroke: 99.5mm x 79.00mm
Capacity: 2,457cc
Compression ratio: 8.4
Max. output (DIN): 169kW(230PS)/5,200rpm
Max. torque (DIN): 320Nm(32.6kgfm)/2,800rpm
Fuel system: Multi Point Sequential Injection
Specifications of the 2.5 liter boxer turbo engine for North American Models
Type: Horizontally-Opposed, DOHC 16 valve, 4-cylinder, turbocharged, petrol engine
Bore/Stroke: 99.5mm x 79.00mm
Capacity: 2,457cc
Compression ratio: 8.4
Power: 224hp@5,200rpm
Torque: 226lb.-ft.@2,800rpm
Fuel system: Multi Point Sequential Injection

Source: Fuji Heavy Industries

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